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. 2017 Sep 1;18(2):18.2.44. doi: 10.1128/jmbe.v18i2.1317

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©2017 Author(s). Published by the American Society for Microbiology

This is an Open Access article distributed under the terms of the Creative Commons Attribution-Noncommercial-NoDerivatives 4.0 International license (https://creativecommons.org/licenses/by-nc-nd/4.0/ and https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode), which grants the public the nonexclusive right to copy, distribute, or display the published work.

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Cluster dendrogram based on faculty course elements. Values at nodes represent bootstrap values from 1,000 bootstrap samples. Institution, discipline, and course type (see text for explanation of course types) are indicated for each course. Course levels are introductory (+), intermediate (++), or advanced (+++). CREs with enrollments less than 10 (S), greater than 20 (L), or in between (M) are indicated. Courses were divided into two clusters as indicated for subsequent analysis. Based on differences in the course elements between the clusters (see Fig. 5), we defined courses as either “Low/moderate novelty and student design” or “High novelty and student design.” Smaller clusters represented as polytomies with high bootstrap support (100/100) are the same courses taught across multiple semesters. CRE = course-based research experience.